NPPES file of Aug 9, 2026

Doctors and health care providers in Santa Ana, CA

8,904 individual NPPES records list a practice address in Santa Ana, 18th of 812 California cities. The largest group is behavior technician: 1,625, 18% of the city's records, against 18% across California. Page 174 of 179.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

The 8 largest groups in Santa Ana

  1. Behavior Technician1,625
  2. Mental Health Counselor684
  3. Marriage & Family Therapist678
  4. Clinical Social Worker433
  5. Addiction (Substance Use Disorder) Counselor407
  6. Registered Nurse281
  7. Counselor247
  8. Social Worker216

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Santa Ana in California

  • Rank in California18th of 812 cities by records
  • Share of the state0.9% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups33.5% of all records

Compared with California as a whole, Santa Ana has 12.5× the state's share of community health registered nurse records and 0.50× its share of student in an organized health care education/training program records.

Providers in Santa Ana, alphabetically

  1. Edward WilliamsRegistered Nurse1699249029
  2. Isabella WilliamsMental Health Counselor1184124646
  3. Jeremy WilliamsMental Health Counselor1083126890
  4. Kathy WilliamsRegistered Nurse1225688997
  5. Kendall WilliamsRehabilitation Practitioner1497321988
  6. Kendra WilliamsMental Health Counselor1376246157
  7. Kiley WilliamsBehavior Technician1700647930
  8. Laura WilliamsSocial Worker1730608449
  9. Levi WilliamsClinical Social Worker1184189623
  10. Matthew WilliamsBehavior Technician1194289173
  11. Michael WilliamsCounselor1033305628
  12. Raquel Williams, MSWClinical Social Worker1386738714
  13. Russell WilliamsCounselor1124518543
  14. Sierra WilliamsBehavior Technician1710508650
  15. Terri Williams, RNOccupational Health Registered Nurse1033571369
  16. Alice WillsMental Health Counselor1649368788
  17. Susan Willsmore, LCSWClinical Social Worker1942978044
  18. Kamarr Wilmington Richee, M.C.Addiction (Substance Use Disorder) Counselor1982975660
  19. Brittany WilsonRehabilitation Practitioner1982412748
  20. Chad WilsonDay Training/Habilitation Specialist1023855798
  21. Christiana WilsonSchool Counselor1073395166
  22. Christina WilsonRegistered Nurse1104527340
  23. Eliot Wilson, MFT TRAINEEMarriage & Family Therapist1316447105
  24. Jeffrey Wilson, NPPsychiatric/Mental Health Nurse Practitioner1801185814
  25. Lavenia WilsonBehavior Technician1013754415
  26. Marcia Wilson, M.A.Clinical Social Worker1932578275
  27. Marie WilsonMental Health Counselor1194076760
  28. Nathan WilsonLicensed Vocational Nurse1720969983
  29. Nichole WilsonMental Health Counselor1861006025
  30. Ronald WilsonMarriage & Family Therapist1821340373
  31. Sandra Wilson, LMFTMarriage & Family Therapist1912569609
  32. Scott Wilson, ASWSocial Worker1992696488
  33. Sean Wilson, B.A.Mental Health Counselor1023545720
  34. Sunshine Wilson, M.A.Speech-Language Pathologist1992030654
  35. Anthony Wines Delgado, MSWMental Health Counselor1962533703
  36. Caleb WinfreyBehavior Technician1003638271
  37. John Winkelman, M.D.Pediatrics Physician1093804163
  38. Irene Winkler, MOT, OTR/LPediatric Occupational Therapist1801128343
  39. Penny Winkler, LMFTMental Health Counselor1073790796
  40. Nicole Winnie, MSN, RN, WHNP-BCWomen's Health Nurse Practitioner1417726209
  41. Jeremiah WinstonMental Health Counselor1073602058
  42. Janet Winter, RN, PHNRegistered Nurse1144401423
  43. Kirk WinterLicensed Vocational Nurse1386117273
  44. Melinda Winterswyk, DPT, ATPPediatric Physical Therapist1164637583
  45. Yuwari WisalaBehavior Technician1659911162
  46. Champion WisemanChiropractor1952727224
  47. Karmen WisemanSocial Worker1679010029
  48. Curtis Witcher, M.D.Family Medicine Physician1235439381
  49. Kanna WitczakBehavior Technician1407442460
  50. Lilia Witthuhn, RNPWomen's Health Nurse Practitioner1740359538

The largest California cities

  1. Los Angeles69,537
  2. San Diego52,937
  3. San Francisco38,143
  4. Sacramento33,083
  5. San Jose20,925

All of California →

How to read this directory

Santa Ana, California appears in the CMS National Plan and Provider Enumeration System with 8,904 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Santa Ana - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Santa Ana practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Santa Ana is weighted toward Behavior Technician (1,625 clinicians, followed by Mental Health Counselor with 684 and Marriage & Family Therapist with 678). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to California's population, Santa Ana reports roughly 22.9 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.

Of California's most common specialties, Internal Medicine Physician is the most prominent one with no provider currently listing a Santa Ana practice address, a coverage gap Santa Ana patients typically fill by traveling to a larger nearby hub.

For Santa Ana patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.

For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.

Common questions

How many doctors are in Santa Ana, CA?

There are 8,904 registered healthcare providers in Santa Ana, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Santa Ana?

The most common specialties in Santa Ana are Behavior Technician, Mental Health Counselor, Marriage & Family Therapist, Clinical Social Worker, Addiction (Substance Use Disorder) Counselor. Behavior Technician has the most providers with 1,625.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.